Records for Sterling-Dulles Airport Area, Virginia (IADthr) on 05-19
Record Highs
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1: 92°F (1997)
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2: 92°F (1996)
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3: 91°F (1998)
Record Lows
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1: 36°F (2002)
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2: 38°F (2009)
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3: 38°F (1976)
Lowest Highs
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1: 66°F (2017)
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2: 66°F (2015)
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3: 66°F (1969)
Highest Lows
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1: 52°F (1981)
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2: 56°F (1976)
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3: 60°F (2002)
Highest May temperature:
97°F on 05-29-1969.
Lowest May temperature:
28°F on 05-07-1970.
Average temperature is 64.5°F
Average high is 74.8°F
Average low is 54.3°F
Temperature data from 1960 to 2022.
Record Precipitation
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1: 1.18" (1988)
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2: 0.90" (2001)
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3: 0.84" (1966)
Precipitation data from 1960 to 2022.